Cummins ISB 6.7L SCR Outlet Catalyst Module 2011-2014: OEM 4354227
CUMMINS ISB 6.7L SCR OUTLET CATALYST MODULE 2011-2014: OEM 4354227
ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY
WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured Tamerx SCR Outlet Catalyst Module, Tamerx part number 102-0102M-SCR ( OEM Part Number 4354227 ). All parts are proudly remanufactured in the U.S.A. to the highest of OEM standards, and improvements are often applied to the original design in the remanufacturing process. This part is primarily made for a Cummins ISB 6.7L, production years 2011-2014, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
OEM NUMBERS
| Primary OEM | 4354227 |
| Additional OEM | 4354227, 5505937 |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490556683 |
| WEIGHT | 110.00 LBS |
SHIPPING OPTIONS
Ship Weight : 110.00 LBS
UPS Ground, 2nd Day Air, Next Day Air
SHIPPING POLICY
Tamerx Diesel Products ships via UPS Ground. Next day air shipping can be arranged for a reasonable price of anywhere from $50.00 - $100.00 depending on the weight of the product and your location. We will do everything we can to make sure that you get the service you need. We understand how important it is to receive your order as quickly as possible.
In most cases Tamerx Diesel Products only needs one address, as long as your product is shipping to the same location as your billing information. In order to eliminate credit card fraud, your billing information must match the credit card you provide.
The terms, conditions, and details of our warranty vary from product to product. Specific warranty details can be found below.
Tamerx Diesel Products provides a replacement warranty on all of our parts. The duration and mileage limitations of the warranty vary by product and are specified on the product's detail page/item listing.
Please note that the warranty covers replacement of the part and the cost of shipping the replacement part to you only. It does not cover any shop, labor, towing, or any similar or related costs. This is not a "money back guarantee".
If you experience a problem with your part or it is not functioning properly, the correct warranty procedure is to call us at (510) 257-1777 (8:00 AM - 5:00 PM ET Monday through Friday). Be sure to have your order number and/or other relevant order information ready so we can easily locate your order and resolve your issue as quickly as possible. From that point, we will review with you any troubleshooting steps that may need to be taken and other areas or systems that can be checked to rule out external problems contributing to your part's issue. If a replacement is determined to be necessary, we will then arrange for your replacement part to ship out ASAP and issue any necessary return shipping labels and/or documents.
As is the case for the majority of the diesel products sold on Tamerx Diesel Products, your part's warranty is active as soon as you install it. In some other cases, warranty activation is contingent upon you sending us your core (i.e., your old part). Tamerx Diesel Products will provide you a return shipping label for parts that have a warranty with a core return condition. When we have received your core return, the part's warranty coverage begins. We reserve the right to void the product warranty if your core is not received within the allotted time, or if it isn't received at all. If the warranty for the diesel part you are purchasing has a core return requirement, it will be clearly noted on the product detail page/item listing.
What is a Core Charge?
A core charge (also called "core deposit") is similar to the deposit you might pay for a can or bottle of soda and is a standard requirement in the auto parts industry. For example, in many states, to promote recycling, you pay a deposit when you purchase a can of soda and receive your deposit back when you return the empty can. Many automotive parts have a core charge, or core price, that works in essentially the same way as a soda can deposit.
30 Day Core Charge Hold
You authorize Tamerx Diesel Products, to hold your credit card for the specified core charge amount and that you agree to return your core with 30 days of receiving the purchased part. When we have received your core return, the hold is released and the core charge payment is canceled.
The customer, or parts buyer, is responsible for any shipping costs associated with core returns unless otherwise specified in the product listing/detail page. Tamerx Diesel Products offers prepaid UPS shipping labels (SKU numbers UPS-CR1 and UPS-CR2) for use in returning your core that are available for purchase on our website during your shopping/order process.
The shipping label you will need to use for the core return is dependent upon what part you are purchasing. UPS-CR1 is good for cores weighing up to 20 pounds. UPS-CR2 is appropriate for shipping cores weighing 21 pounds or more. You must include enough information with the core return that clearly identifies it as a.) a Core Return, and b.) contains enough information we can use to clearly associate the core return with your order. Including a copy of the invoice or packing slip that came with the original shipment, clearly marked "Core Return", is ideal. Alternately, you can include a note marked as "Core Return" that includes your order number, full name and address, and phone number or other contact information. Failure to include this information with your returned core will most likely delay any due core credit being issued and/or delay any applicable warranty activation. Core returns need to be for the exact part purchased and cannot be damaged. Substituting another part in place of the part you have purchased is not acceptable.
All fluids must be drained.
If you have purchased a set or a parts package, you will need to return cores for all components of the set. For example, if you have purchaed a high pressure oil pump with an IPR valve, you will need to return both HPOP and IPR valve cores to receive proper credit. If you have purchased an EGR cooler/EGR valve package, your core return must consist of an EGR cooler core and an EGR valve core, or core credit will not be given.
Core Charges are often mandated by state legislature, and, as such, the actual core charge and taxes on the charge may vary depending on the state in which you buy your part. The Tamerx Diesel Products core charge presented to you online today with your item is representative of the most common core charge.
Designed to support efficient exhaust aftertreatment operation, the Cummins ISB 6.7L SCR Outlet Catalyst Module (2011–2014) OEM 4354227 is an essential component for maintaining proper emissions system function. Manufactured to meet original equipment specifications, it ensures precise compatibility with Cummins ISB 6.7L engines across the specified model years. This SCR outlet catalyst module works within the selective catalytic reduction system to help reduce nitrogen oxide (NOx) emissions by promoting the final stage of exhaust gas treatment before release. Constructed from durable, high-quality materials, it is engineered to withstand extreme exhaust temperatures and demanding heavy-duty operating conditions. Ideal for technicians, fleet operators, and equipment owners, this OEM SCR outlet catalyst module helps maintain reliable aftertreatment system operation and long-term durability.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2011 | Cummins | ISB 6.7L | ||||
| 2012 | Cummins | ISB 6.7L | ||||
| 2013 | Cummins | ISB 6.7L | ||||
| 2014 | Cummins | ISB 6.7L | ||||
PEOPLE ALSO ASKS | BLOG(S)
The Cummins ISB 6.7L SCR Outlet Catalyst Module (OEM 4354227) is an essential component of the engine's aftertreatment system because it performs the final stage of nitrogen oxide (NOx) reduction before exhaust gases leave the vehicle. Designed for 2011–2014 Cummins ISB 6.7L engines, this module works with Diesel Exhaust Fluid (DEF) to convert harmful NOx emissions into harmless nitrogen and water vapor, helping the engine comply with emissions regulations. SCR technology is a core part of Cummins' aftertreatment systems and is designed to work together with the DOC and DPF for effective emissions control.
Although it is located near the end of the exhaust system, the SCR Outlet Catalyst Module plays a significant role in maintaining the efficiency of the entire aftertreatment process.
Why is the Cummins ISB 6.7L SCR Outlet Catalyst Module important?
- Reduces nitrogen oxide (NOx) emissions
- The catalyst uses ammonia produced from DEF to convert harmful NOx into harmless nitrogen and water vapor before the exhaust exits the system.
- Completes the emissions treatment process
- As the final catalyst stage, it helps ensure exhaust gases receive the necessary treatment before being released into the atmosphere.
- Works together with the DOC and DPF
- The module relies on properly conditioned exhaust from the Diesel Oxidation Catalyst (DOC) and Diesel Particulate Filter (DPF), allowing the complete aftertreatment system to operate efficiently.
- Supports emissions compliance
- A properly functioning SCR catalyst is essential for meeting modern diesel emissions standards and avoiding emissions-related faults.
- Communicates with engine control systems
- The engine control module (ECM), NOx sensors, and temperature sensors continuously monitor SCR operation to maintain proper emissions control.
- Contributes to dependable engine operation
- When the SCR system operates correctly, it helps prevent emissions-related warning lights, derates, and aftertreatment faults that can affect vehicle operation.
The Cummins ISB 6.7L SCR Outlet Catalyst Module (OEM 4354227) serves as the final emissions-cleaning stage in the aftertreatment system. By converting harmful NOx into harmless gases, it helps the engine meet emissions requirements, supports the performance of the complete aftertreatment system, and contributes to reliable operation throughout the life of the vehicle.
A failing SCR Outlet Catalyst Module can reduce the effectiveness of your vehicle's emissions system and may trigger warning lights or engine derates. Because this component works with the Selective Catalytic Reduction (SCR) system to reduce nitrogen oxide (NOx) emissions, problems with the module can affect overall engine operation and emissions compliance.
Recognizing the warning signs early can help prevent additional damage to the aftertreatment system.
Here are the most common signs of a bad SCR Outlet Catalyst Module:
- Check engine light
- One of the first indicators is an illuminated check engine light accompanied by emissions-related diagnostic trouble codes.
- Frequent SCR or NOx fault codes
- The engine control module may detect reduced catalyst efficiency or abnormal readings from the emissions system.
- Engine derate or reduced-power mode
- Many diesel engines automatically limit vehicle speed or engine output when a serious SCR system fault is detected.
- Poor emissions system efficiency
- A damaged or contaminated catalyst may no longer convert harmful emissions effectively, causing repeated emissions failures.
- Increased DEF consumption
- An inefficient SCR system may use more Diesel Exhaust Fluid (DEF) than normal as it attempts to maintain proper emissions control.
- Visible physical damage
- Cracked housings, impact damage, corrosion, or damaged mounting points can affect the module's ability to function correctly.
- Unusual exhaust odors or excessive heat
- Changes in exhaust smell or excessive heat around the aftertreatment system may indicate the catalyst is no longer operating as intended.
If you notice any of these symptoms, have the SCR Outlet Catalyst Module and the rest of the aftertreatment system inspected promptly. Addressing the problem early can help prevent more extensive emissions system repairs, reduce downtime, and keep your diesel engine operating reliably.
Yes. DEF contamination, coolant leaks, excessive soot, oil contamination, or catalyst poisoning can reduce the effectiveness of the SCR catalyst and negatively impact emissions performance.
Technicians should inspect the DEF injector, NOx sensors, exhaust clamps, gaskets, wiring harnesses, temperature sensors, and adjoining aftertreatment components to ensure proper installation and system operation.
Depending on the engine configuration, replacing the SCR catalyst may require an ECM calibration update and verification of the correct wiring configuration to ensure proper operation of the emissions system.
Using the correct OEM 4354227 helps ensure proper fitment, compatibility with the original Cummins aftertreatment system, correct exhaust flow characteristics, and reliable long-term emissions control for compatible ISB 6.7L engines.
Cummins SCR Outlet Catalyst Modules
